method
If the substance is liquid, add three drops of universal indicator and compare the color to the color chart.
If the substance is solid, try dissolving it in water and test its pH.
Test to see what effect the substance has on the pH of an acid or alkaline solution to see if it neutralizes it.
How to detect unknown substances?
How to handle unknown substances
gas chromatography
Gas Chromatography Mass Spectrometry (GC-MS)
Ion Chromatography (IC)
effective liquid chromatography
Dispersive Raman spectroscopy.
Fourier Transform Infrared Spectroscopy (FTIR)
What is the accurate way to test pH?
pH meter
It is an accurate measurement type with a wide range of applications. Pocket instruments called Testers are small, easy to use for field work, and relatively inexpensive.
What does the pH level indicate?
pH is a measure of how acidic/alkaline water is. Ranges from 0 to 14, with 7 being neutral. A pH less than 7 indicates acidity, while a pH greater than 7 indicates alkalinity. pH is actually a measure of the relative amounts of free hydrogen and hydroxyl ions in water.
Is there a way to test the pH of water?
Every substance around you, from the orange juice you drink and the water you use to bathe to the saliva in your mouth, has a pH. Testing the pH of a liquid, which can be done in different ways, tells you if it's acidic, basic, or neutral.
How to measure the pH value of a solution?
pH indicator. A pH indicator is a weak acid in the form of a natural dye, which indicates the concentration of H+ (\(H_3O^+\)) ions in the solution through a color change. The pH value is determined by the negative logarithm of that concentration and is used to indicate the acidic, basic, or neutral properties of the substance you are testing.
